Heating and Cooling on at same time


  #1  
Old 08-29-02, 12:35 PM
speck909
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Heating and Cooling on at same time

The heating and cooling units are activated at the same time. Is this a problem with thermostat?

I have a Honeywell Chronotherm III thermostat that was replaced with a Chronotherm IV. They were models 8602.
 
  #2  
Old 08-29-02, 01:18 PM
bigjohn
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Did it start right after the thermostat was replaced? Maybe a couple bare wires are touching at the terminals?? Or maybe a couple wires are in the wrong place? The thermostat has a built in deadband between heating and cooling. That could out of whack but we need to check the wiring first.
 
 

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